Improvement in flexible harrows



. c. n. BLINN.

Harrow.

Patented May 5, 1868.

UNITED STATES PATENT OFFICE,

CHARLES D. BLIN on road HURON, MICHIGANf IMPROVEMENT IN' FLEXIBLEHARROWS.

Specification forming part of LettersPatent No. 77,574, dated May 5,1868.

To all whom it may concern 7 'Be it known that I, CHARLES'D. BLINN,.0fPort Huron, in the county of St; Clair and State of Michigan, haveinvented a new and useful Improvement in Flexible Harrows; and I dodeclare that the followingis atrue and accurate description t h.ereof,"re i'erence being had to the accompanying drawing,qand to the lettersof parallel-bars A, many or as few asithe nature of the work, the stateof the ground, and the power applied may demand. Into these parallelbars'iinsert the ordinary ironor Steel barrow-teeth, in the usual way,and connect the'bar's by the'li-nks O and the solid link D. The links 0are double and actas hinges, to, allow for the play of the-barsin'passing over uneven ground; The links pass around the bars, one endinside the end tooth of one bar and the other end outside the end toothof she next bar. The draft, being at the clevis E and from near thecorner of the barrow, produces a diagonal direction of the barrow whenin use, which diagonal direction, with the 'position of the links,--will prevent the links from slipping offby the draft being directlyagainst the outer teeth, thereby securing the whole together-while inuse. By this arrangement 0f the links they admit of the bars beingeasily taken apart for transportation or'storage: The solid'link I) isrigidly fastened tothe bars which it connects together, to prevent anynn= due tilting of the rear bar in the barrow. I The flexibility givenby thecon meeting-1i nks,

independently ofeitherof the other bars, and not disarra'nge the Whole,as would be the case were'tlie whole of the 'bars rigidly attachedtogether. n

. The bar's','-li-nks,

plish the work. desired,

v and greatly facilitates repairs when necessary.

What I- claim as my invention, and desire to v secure-by Letters Patent,i s i 1. The .double links Qwhen operated'in connection ,with'the bars Ain the position herein described. r

*2. The solid link-D, in connection with the above-mentioned parts whenconstructed and operating substantially as and for the purposes hereinset forth.

. Witnesses:

J W, -H0UGHTE IN, J OHN HALL.

an teeth-being n. alike admits of the removal oraddition of as'many; .oras few.ba rs' as'may be desirable to accom- CHARLES .1). B Inn.

